(C#) XAdES XML Signature using ARSS (Aruba Remote Signing Service)

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Demonstrates how to sign XML using ARSS (Aruba Remote Signing Service).

Note: This example requires Chilkat v9.5.0.96 or greater.

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// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// --------------------------------------------------------------------------------
// Also see Chilkat's Online WSDL Code Generator
// to generate code and SOAP Request and Response XML for each operation in a WSDL.
// --------------------------------------------------------------------------------

// Create the XML to be signed.
Chilkat.StringBuilder sbXml = new Chilkat.StringBuilder();

bool bCrlf = true;
sbXml.AppendLine("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>",bCrlf);
sbXml.AppendLine("<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\">",bCrlf);
sbXml.AppendLine("    <SOAP-ENV:Header>",bCrlf);
sbXml.AppendLine("        <wsse:Security xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" SOAP-ENV:mustUnderstand=\"1\"></wsse:Security>",bCrlf);
sbXml.AppendLine("    </SOAP-ENV:Header>",bCrlf);
sbXml.AppendLine("    <SOAP-ENV:Body xmlns:SOAP-SEC=\"http://schemas.xmlsoap.org/soap/security/2000-12\" SOAP-SEC:id=\"Body\">",bCrlf);
sbXml.AppendLine("        <z:FooBar xmlns:z=\"http://example.com\" />",bCrlf);
sbXml.AppendLine("    </SOAP-ENV:Body>",bCrlf);
sbXml.AppendLine("</SOAP-ENV:Envelope>",bCrlf);

// Specify the signing certificate and the ARSS credentials

// Load the certificate used for signing.  The certificate's private key is stored on 
// the Aruba.it server and the signing will happen remotely using the
// ARSS (Aruba Remote Signing Service).
// However, we still need the certificate locally (without private key).
Chilkat.Cert cert = new Chilkat.Cert();
bool success = cert.LoadFromFile("qa_data/certs/myCert.cer");
if (success == false) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

// To sign using the Aruba Remote Signing Service, 
// add the following lines of code to specify your authentication credentials,
// and the ID of the certificate w/ private key on the server to be used.
Chilkat.JsonObject jsonArss = new Chilkat.JsonObject();

// Set the "service" equal to "ARSS" to tell Chilkat to use ARSS for signing.
jsonArss.UpdateString("service","ARSS");
// Specify the certificate ID, such as "AS0"
// This certificate should match the certificate loaded in the above code.
jsonArss.UpdateString("certID","YOUR_ARSS_CERT_ID");
jsonArss.UpdateString("otpPwd","YOUR_OTP_PWD");
jsonArss.UpdateString("typeOtpAuth","demoprod");
jsonArss.UpdateString("user","YOUR_ARSS_USERNAME");
jsonArss.UpdateString("userPWD","YOUR_ARSS_PASSWORD");
success = cert.SetCloudSigner(jsonArss);

// Prepare for signing...
Chilkat.XmlDSigGen gen = new Chilkat.XmlDSigGen();

// Indicate where the Signature will be inserted.
gen.SigLocation = "SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security";

// Add a reference to the fragment of the XML to be signed.

// Note: "Body" refers to the XML element having an "id" equal to "Body", where "id" is case insensitive
// and where any namespace might qualify the attribute.  In this case, the SOAP-ENV:Body fragment is signed
// NOT because the tag = "Body", but because it has SOAP-SEC:id="Body"
gen.AddSameDocRef("Body","sha1","EXCL_C14N","","");

// (You can read about the SignedInfoPrefixList in the online reference documentation.  It's optional..)
gen.SignedInfoPrefixList = "wsse SOAP-ENV";

gen.KeyInfoType = "X509Data";
gen.X509Type = "IssuerSerial";

bool bUsePrivateKey = true;
success = gen.SetX509Cert(cert,bUsePrivateKey);
if (success != true) {
    Debug.WriteLine(gen.LastErrorText);

    return;
}

// Everything's specified.  Now create and insert the Signature
// (The actual signing of the hash will happen on the Aruba server.)
success = gen.CreateXmlDSigSb(sbXml);
if (success != true) {
    Debug.WriteLine(gen.LastErrorText);
    return;
}

// Examine the XML with the digital signature inserted
Debug.WriteLine(sbXml.GetAsString());